Spark-arrester.



J. I. STAMPAHAR & J. P. ROM.

SPARK ARREST-ER. APPLIOATION FILED AUG. 25, 1911.

1,030,028, Patented June 18,1912.

a o -wlalll COLUMBIA PLANOGRAPH co..w^SH|NuTON, D. C.

j UNTTEU STATES FATENT FFT@F.

JOSEF IVAN STAMPAI-IAR AND JOSEPH FRANK ROM, OF REI) LODGE, MONTANA.

SPARK-ARRESTER.

Specification of Letters Patent.

Patented J une 18, 1912.

Application led August 25, 1911. Serial No. 645,960.

To all 'Lu/wm t may concern:

Be it known that we, Josnr IvAN STM-urn- HAR and Josnrri FRANK Ron, citizens of the United States, residing at Red Lodge, in the county of Carbon, State of Montana, have invented certain new and useful Tmprovements in Spark-Arresters; and we do hereby declare the following to be a full, clear, and eXact description of the invention, such as will enable others skilled in the art to which it appert-ains to make and use the same. This invention relates to an improvement in spark arresters adapted for connection to locomotive smoke stacks for preventing` sparks and cinders from being ejected there from.

The principal object of this invention is -to provide an arrester for the purpose de'- scribed which is composed of a minimum number of parts, is therefore simple in construction, and is cheap to manufacture.

Vith these and other objects in view, the invention consists in the construction and novel combinat-ion of parts hereinafter fully described, illustrated in lthe accompanying drawings, and pointed out in the claims hereto appended; it being understood that various changes in the form, proportion, size and minor details of construction within the scope oi' the claims, may be resorted responding parts in all the figures of the drawing.

Referring to the drawing, the invention comprises a smoke stack '5 to the upper end of which is attached our improved spark arrester, which includes a cylindrical easing 6. This casing has a reduced lower end 7 adapted to be disposed around the upper end of the stack 5. The casing above the reduced portion 7 flares outwardly, as indi cated by the reference numeral 8, and thence upwardly to form a wall 9, the diameter of the outer portion of the casing being considerably great-er than the diameter of the smoke stack 5. This casing is secured to the stack by means of bolts 10 or other suitable fastening means, which are passed through suitable openings respectively formed in the reduced portion 7 and the stack 5.

Disposed within the casing G and resting upon the flared portion S thereof is the upper end of an inverted cone 11. This cone is secured in position by means of bolts 12 or other suitable fastening` means, and the apex 13 of said cone projects downwardly into the stack 5 below the upper end thereof. Secured to the inner faces of the wall 9 of the casing and near the upper end thereof are spaced brackets 14, and upon these brackets is seated a rim 15 of a horizontal screen 16, said rim and bracket being securely held together by means of bolts 17. Transverse bolts 18 are employed for securing the brackets 14Y to the wall 9 of the casing, and these bolts furthermore are employed for retaining the rim 19 of a converted screen 20 to said casing, the last mentioned screen projecting above the upper end of the casing G.

Secured by bolts 21 to the inner face of the wall 9 intermediate the screen 11 and the screens 16 are spaced brackets 20a. Seated upon these brackets is the rim 22 -of a screen 23, said rim and bracket being secured together by bolts 24: or other suitable fastening means.

The screens 11-2316 and 20 are formed of wire mesh, the mesh of the screens being reduced in the order named.

From the foregoing, it will be observed that any cindersor sparks which pass the lower or cone screen 11 will engage the next screen 23, and should they fail to beretarded by this screen they will engage the screen 16. Should, however, they pass this screen, they will be stopped by the small mesh screen 2O at the top.

What is claimed is 1. The combination with a smoke stack, of a spark arrester consisting of a casing having a reduced lower end disposed around and secured to the upper end of the stack, said casing being iiared outwardly above the stack and thence upwardly to form a wall, an inverted wire mesh cone 'resting upon the iiared portion 'of the casing and having its apex disposed cent-rally within the stack, a plurality of spaced screens of graduating meshes secured within the easing and disposed above the first mentioned screen.

2. The combination with a smoke stack, of a spark arrester consisting' of a casing having` a reduced lower end disposed around and secured to the upper end of the stack, said casing being flared outwardly above the stack and thence upwardly to form a wall, an inverted wire inesh cone resting' upon the flared portion of the easing and having` its apex disposed centrally within the stack, and a eonvexed screen disposed at the upper end of the casing` and having' a riin disposed around said casing.

3. The combination with a smoke stack.l of a spark arrester consisting of a casing having a reduced lower end disposed around and secured to the upper end of the stack, said casing being flared outwardly above the stack aud thence upwardly to forni a wall, an inverted wire inesh cone resting` gether, and a screen supported upon said brackets.

In testimony whereof we affix our signatures 1n presence of two witnesses.

JOSEF VAN STAMPAHAR. JOSEPH FRANK ROM.

lVitnesses:

D. Gr. OSHEA, G. L. FINLEY.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

Washington, I). G. 

